CN205003432U - Light -emitting device and projection display device - Google Patents
Light -emitting device and projection display device Download PDFInfo
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- CN205003432U CN205003432U CN201520484525.7U CN201520484525U CN205003432U CN 205003432 U CN205003432 U CN 205003432U CN 201520484525 U CN201520484525 U CN 201520484525U CN 205003432 U CN205003432 U CN 205003432U
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Abstract
A light -emitting device and projection display device is proposed, including the laser lamp -house who is used for launching former laser, still include beam splitting device and the beam condensing unit that is located this beam splitting device light path rear end, wherein beam splitting device distinguishes and derives the district including leading -in, still include wavelength converters, this wavelength converters includes wavelength conversion section and back scatter section, and wavelength conversion section includes the reflection stratum and covers the wavelength conversion layer on the reflection stratum surface, still including function light filter and the drive arrangement of cover on the wavelength conversion layer surface. District's transmission laser is derived to beam splitting device's leading -in district reflection laser, and just leading -in district receives laser with deriving to distinguish all to pass through. Utilize the cooperation of two of beam splitting device districts and function light filter, the first scattering laser that makes wavelength conversion section go up the outgoing of success is suppressed and can not the outgoing, makes the second scattering laser of outgoing in the back scatter section can most outgoing simultaneously.
Description
Technical field
The utility model relates to light source field, particularly relates to the projection display equipment of light-emitting device and this light-emitting device of use.
Background technology
At present, the fluorescent powder rotating disk that laser excitation is rotated produces the fluorescence of timesharing, and this method has been compared to be widely used in Projection Display industry.But current scheme or complex structure huge, or emergent light color is impure, all there is certain defect.Therefore a kind of efficient, compact, solution that emergent light color is good is sought after.
Summary of the invention
The utility model proposes a kind of light-emitting device, comprise the LASER Light Source for launching former laser, also comprise light-dividing device and the beam condensing unit being positioned at this light-dividing device light path rear end, wherein light-dividing device comprises Lead-In Area and leading-out zone, being the first angular range from the angle distribution range of light after beam condensing unit optically focused of Lead-In Area outgoing, is the second angular range from the angle distribution range of light after beam condensing unit optically focused of leading-out zone outgoing; The former laser that LASER Light Source is launched is incident in the Lead-In Area of light-dividing device.Light-emitting device also comprises Wavelength converter, this Wavelength converter comprises wavelength convert section and specular scattering section, wavelength convert section comprises reflection horizon and covers the wavelength conversion layer on surface, reflection horizon, this wavelength conversion layer absorbs after former laser can outgoing Stimulated Light and the first scattering laser, and wherein the first scattering laser is that former laser is by wavelength conversion layer specular scattering but unabsorbed residue laser; Wavelength convert section also comprises the function optical filter covering wavelength conversion layer surface, this function optical filter mostly can be transmitted into the former laser of firing angle in the first angular range and the first scattering laser, and mostly can be reflected into firing angle at the former laser of the second angular range and the first scattering laser, function optical filter can also the Stimulated Light of mostly transmission full angle scope simultaneously; Specular scattering section then can be carried out specular scattering to the former laser of incidence and be formed the second scattering laser.Wavelength converter also comprises drive unit, for the former laser optical path driving wavelength convert section and specular scattering section to enter beam condensing unit focus place periodically in turn.Former laser, the first scattering laser and the second scattering laser are reflected in the Lead-In Area of light-dividing device, the former laser of leading-out zone transmission of light-dividing device, the first scattering laser and the second scattering laser, and Lead-In Area and leading-out zone all transmission Stimulated Light.
The utility model also proposes a kind of light-emitting device, comprise the LASER Light Source for launching former laser, also comprise light-dividing device and the beam condensing unit being positioned at this light-dividing device light path rear end, wherein light-dividing device comprises Lead-In Area and leading-out zone, being the first angular range from the angle distribution range of light after beam condensing unit optically focused of Lead-In Area outgoing, is the second angular range from the angle distribution range of light after beam condensing unit optically focused of leading-out zone outgoing; The former laser that LASER Light Source is launched is incident in the Lead-In Area of light-dividing device.Light-emitting device also comprises Wavelength converter, this Wavelength converter comprises wavelength convert section and specular scattering section, wavelength convert section comprises reflection horizon and covers the wavelength conversion layer on surface, reflection horizon, this wavelength conversion layer absorbs after former laser can outgoing Stimulated Light and the first scattering laser, and wherein the first scattering laser is that former laser is by wavelength conversion layer specular scattering but unabsorbed residue laser; Wavelength convert section also comprises the function optical filter covering wavelength conversion layer surface, this function optical filter mostly can be transmitted into the former laser of firing angle in the first angular range and the first scattering laser, and mostly can be reflected into firing angle at the former laser of the second angular range and the first scattering laser, function optical filter can also the Stimulated Light of mostly transmission full angle scope simultaneously; Specular scattering section then can be carried out specular scattering to the former laser of incidence and be formed the second scattering laser.Wavelength converter also comprises drive unit, for the former laser optical path driving wavelength convert section and specular scattering section to enter beam condensing unit focus place periodically in turn.The former laser of Lead-In Area transmission of light-dividing device, the first scattering laser and the second scattering laser, former laser, the first scattering laser and the second scattering laser are reflected in the leading-out zone of light-dividing device, and Stimulated Light is all reflected in Lead-In Area and leading-out zone.
The utility model also proposes a kind of projection display equipment, uses above-mentioned light-emitting device as light source.
The utility model utilizes the Liang Ge district of light-dividing device and coordinating of function optical filter, successfully make the first scattering laser of outgoing in wavelength convert section suppressed and can not outgoing, make the second scattering laser of outgoing in specular scattering section can most outgoing simultaneously.So both effective implemention timesharing was luminous, ensure that each monochromatic monochromaticity, and it was very simple to realize structure simultaneously.
Accompanying drawing explanation
Figure 1A is the structural representation of the light-emitting device of the utility model first embodiment;
Figure 1B is the principle of work signal of beam condensing unit in Figure 1A illustrated embodiment;
Fig. 1 C is the front elevation of light-dividing device in Figure 1A illustrated embodiment;
Fig. 1 D is the front elevation of Figure 1A illustrated embodiment medium wavelength conversion equipment;
Fig. 1 F be in Figure 1A illustrated embodiment function optical filter through spectrum citing;
Fig. 1 G is the spectrum citing of laser and Stimulated Light in Figure 1A illustrated embodiment;
Fig. 1 H is the schematic diagram in Figure 1A illustrated embodiment when specular scattering section moves to former laser optical path;
Fig. 2 is the structural representation of the light-emitting device of another embodiment of the utility model;
Fig. 3 is the principle schematic that in another embodiment of the utility model, LASER Light Source adopts compression light beam after many laser diodes;
Fig. 4 A is the structural representation of the light-emitting device of another embodiment of the utility model;
Fig. 4 B is the front elevation of light-dividing device in Fig. 4 A illustrated embodiment.
Embodiment
The utility model proposes a kind of light-emitting device, the structural representation of its first embodiment as shown in Figure 1A.This light-emitting device comprises the LASER Light Source 101 for launching former laser 121, also comprises light-dividing device 102 and the beam condensing unit 103 being positioned at this light-dividing device light path rear end.Wherein, as shown in Figure 1 C, light-dividing device 102 comprises Lead-In Area 102a and leading-out zone 102b, and the former laser 121 that LASER Light Source 101 is launched is incident in the Lead-In Area 102a of light-dividing device.
The light of district's outgoing different on light-dividing device 102 can be in different angular ranges after beam condensing unit 103 optically focused, namely being the first angular range from the angle distribution range of light after beam condensing unit 103 optically focused of Lead-In Area 102a outgoing, is the second angular range from the angle distribution range of light after beam condensing unit 103 optically focused of leading-out zone 102b outgoing.Specifically, in the present embodiment, the Lead-In Area 102a of light-dividing device 102 is positioned at the middle part of light-dividing device acting surface, and leading-out zone 102b is positioned at around the 102a of Lead-In Area.As shown in Figure 1B, light 193 and 194 centered by the light of Lead-In Area 102a outgoing, these two light are in small angle range after beam condensing unit optically focused, and the light of leading-out zone 102b outgoing is peripheral light 191 and 192, and these two light are in polarizers of big angle scope after beam condensing unit optically focused.Therefore in the present embodiment, first angular range is the angular range that angle is less than characteristic angle, second angular range is that angle is greater than characteristic angle and is less than the angular range of 90 degree, wherein characteristic angle is exactly the angle corresponding to the border of Lead-In Area and leading-out zone, this angle is different in different system, such as, be 30 degree.
The light of district's outgoing different on light-dividing device is in different angular ranges after beam condensing unit optically focused, is to be determined by general optical principle.For beam condensing unit, side is directional light, and side is converging light, so the EDS maps of the light of directional light side, just corresponds to the angle distribution of the light of converging light side.For example, the center light of directional light side, just corresponds to the low-angle light of converging light side, the light surround of directional light side, just corresponds to the wide-angle light of converging light side.
Light-emitting device of the present utility model also comprises the Wavelength converter 104 being positioned at beam condensing unit light path rear end, and this Wavelength converter 104 comprises wavelength convert section 104a and specular scattering section 104b, and the front elevation of Wavelength converter 104 as shown in figure ip.Wavelength convert section 104a comprises reflection horizon 105 and sees Figure 1A with the wavelength conversion layer 104a1(covering surface, reflection horizon), this wavelength conversion layer 104a1 absorbs after former laser 121 can outgoing Stimulated Light and the first scattering laser, and wherein the first scattering laser is that former laser 121 is by wavelength conversion layer specular scattering but unabsorbed residue laser.Wavelength convert section 104a also comprises the function optical filter 104a2 covering wavelength conversion layer 104a1 surface, this function optical filter 104a2 mostly can be transmitted into the former laser of firing angle in the first angular range and the first scattering laser, and mostly can be reflected into firing angle at the former laser of the second angular range and the first scattering laser, this function optical filter can also the Stimulated Light of mostly transmission full angle scope simultaneously.
Fig. 1 F is the citing of function optical filter through spectrum, is described with reference to the laser of figure 1G and the spectrum of Stimulated Light simultaneously.In figure 1g, 181 is the spectrum (scattering process does not change spectrum, and the spectrum of the second scattering laser therefore hereafter mentioned is also identical with the spectrum of former laser) of former laser and the first scattering laser, 182 spectrum representing Stimulated Light.In figure 1f, as marked in figure, article five, curve represent respectively incident angle be 0 degree, 20 degree, 30 degree, 45 degree and 60 degree time through spectrum, laser in comparison diagram 1G and the spectrum of Stimulated Light known, this function optical filter can the mostly former laser of transmission 0 degree and 20 degree and the first scattering laser, and mostly can reflect former laser and first scattering laser of 30 degree, 45 degree and 60 degree, simultaneously can also the Stimulated Light of mostly transmission full angle scope.In this example, the first angular range refers to the angular range that angle is less than 25 degree, and the second angular range refers to angle and is greater than 25 degree and the angular range being less than 90 degree, and namely characteristic angle is 25 degree.In fact, this function optical filter make use of spectral filter through spectrum along with incident angle increase and to short wavelength drift characteristic to realize above-mentioned functions.This citing can realize completely for illustration of the function of the function optical filter in the present embodiment, but does not form restriction of the present utility model.
In this Wavelength converter, specular scattering section 104b is used for carrying out specular scattering to the former laser 121 of incidence and forms the second scattering laser; The action principle of specular scattering section will be explained in Fig. 1 H.
In the present embodiment, Wavelength converter 104 also comprises drive unit 106, for the former laser optical path driving wavelength convert section and specular scattering section to enter beam condensing unit 103 focus place periodically in turn.
In the present embodiment, the former laser of Lead-In Area transmission of light-dividing device, the first scattering laser and the second scattering laser, former laser, the first scattering laser and the second scattering laser are reflected in the leading-out zone of light-dividing device, and Stimulated Light is all reflected in Lead-In Area and leading-out zone.
Lower mask body introduces the principle of work of the present embodiment.
Situation when wavelength convert section 104a is positioned on former laser optical path is as follows, as shown in Figure 1A.The former laser 121 that LASER Light Source 101 is launched is incident in the Lead-In Area 102a of light-dividing device, due to the former laser of Lead-In Area 102a transmission, therefore former laser is imported into district and is directed through beam condensing unit and converges at wavelength convert section 104a, the angle distribution range of incident angle is the first angular range, such as, be less than or equal to the scope of 25 degree.According to the characteristic of function optical filter, this former laser can mostly transmission function optical filter 104a2 be incident in wavelength conversion layer 104a1.Three parts are then divided into from the light of wavelength conversion layer 104a1 outgoing.Wherein, major part Stimulated Light transmission function optical filter 104a2 is also collected by beam condensing unit and collimates, because Stimulated Light is all reflected in the Lead-In Area of light-dividing device 102 and leading-out zone, therefore the device reflection that is split of this Stimulated Light 123 guides and to separate with the light path of former laser 121 and to be exported the emergent light into light-emitting device.Two parts are divided into again from the first scattering laser of wavelength conversion layer outgoing, wherein, emergence angle is at the first scattering laser mostly transmission function optical filter 104a2 collected by beam condensing unit and collimate of the first angular range, because light path is reversible, this part first scattering laser 122 is incident in the Lead-In Area 102a of light-dividing device and is imported into the light path reverse propagation of district's transmission guiding along former laser; And emergence angle is mostly reflected by function optical filter 104a2 at the first scattering laser of the second angular range thus turns back to wavelength conversion layer and recycle.Visible, when wavelength convert section 104a is positioned on former laser optical path, light-emitting device can launch pure Stimulated Light, and the first scattering laser cannot derive formation emergent light.
Situation when specular scattering section 104b is positioned on former laser optical path is as follows, as shown in fig. 1h.The former laser 121 that LASER Light Source 101 is launched is incident in the Lead-In Area 102a of light-dividing device, and due to the former laser of Lead-In Area 102a transmission, therefore former laser is imported into district's transmission and is directed through beam condensing unit and converges at specular scattering section and by its specular scattering.Two parts are divided into from the second scattering laser of specular scattering section 104b outgoing.Wherein, because light path is reversible, emergence angle is incident in the Lead-In Area 102a of light-dividing device at the second scattering laser 129 of the first angular range and is imported into the light path reverse propagation of district's transmission guiding along former laser 121, and emergence angle can be incident in the leading-out zone 102b of light-dividing device at the second scattering laser of the second angular range and be exported district's reflection guiding formation emergent light 124.Visible, when specular scattering section 104b is positioned on former laser optical path, light-emitting device can launch the second scattering laser.Although part second scattering laser 129 defines light loss, as long as the area of leading-out zone is greater than the area of Lead-In Area, the major part of the second scattering laser just directedly out can form outgoing.Therefore preferred in the present embodiment, the area of leading-out zone is not less than two times of Lead-In Area area.
In the present embodiment, utilize the Liang Ge district of light-dividing device and coordinating of function optical filter 104a2, successfully make the first scattering laser of outgoing on wavelength convert section 104a suppressed and can not outgoing, make the second scattering laser of outgoing on specular scattering section 104b can most outgoing simultaneously.So both effective implemention timesharing was luminous, ensure that each monochromatic monochromaticity simultaneously.
The structural representation of another embodiment of the present utility model as shown in Figure 2.With the embodiment shown in Figure 1A unlike, in the present embodiment, also comprise LED source 208, the light 225 that the Lead-In Area of light-dividing device 202 and leading-out zone all transmission LED source 208 send; The light 225 that LED source sends to be incident on light-dividing device 202 and to be guided the emergent light forming light-emitting device by its transmission.The benefit of the present embodiment is on the basis of Figure 1A illustrated embodiment, turn increase a LED source, and on the basis of improving brightness, structural complexity does not improve.
As mentioned above, in the embodiment shown in Figure 1A, a more crucial place is the area ratio of leading-out zone and Lead-In Area, and the outgoing efficiency of larger then the second scattering laser of this area ratio is higher.Therefore when acting surface area one timing of light-dividing device, the outgoing efficiency of less then the second scattering laser of Lead-In Area area is higher.And what limit Lead-In Area area is the sectional area of former laser, especially when former laser comprises the array of many laser diodes compositions, its sectional area obviously can expand and makes it be difficult to all be incident in Lead-In Area.In order to address this problem, the structure shown in Fig. 3 provides the citing of a solution.
In figure 3, LASER Light Source 301 comprises diode laser matrix, each laser diode launches a branch of laser be parallel to each other, each laser beam is incident in the first convex lens 312 and the second lens 313 successively, wherein the bore of the first convex lens is greater than the second lens, and the coinciding with the focus of the second lens of the first convex lens.Wherein, each laser beam is incident in the first convex lens post-concentration in its focus, being incident in the second lens forming directional light from focus outgoing, because the bore of the second lens is less, so long-pending less than the directional light beam cross section being incident in the first convex lens from the directional light of the second lens outgoing.So the combination of the first convex lens and the second lens serves the effect of compression light beam.Second lens are convex lens in the present embodiment; In reality, the second lens also can be concavees lens, and the distance between such two lens can be compressed further, and structure can be compacter.
In the present embodiment, also use multiple small reflector (in figure, 311 is two wherein) to reflect multiple laser Shu Jinhang, this multiple small reflector forms stepped, the spacing of the laser beam in fact reflected also is less than the spacing of the laser beam directly penetrated from LASER Light Source 301, and namely the stair-stepping catoptron of appropriate design also serves the effect of compression light beam.
Generally speaking, utilize the stair-stepping catoptron in the present embodiment and two lens combinations effectively can compress the sectional area of multiple laser bundle, effectively can reduce the area of Lead-In Area in light-dividing device like this.
In the above-described embodiments, former laser-transmitting Lead-In Area and Stimulated Light and the second scattering laser are split device reflection derive formed emergent light.Also have another kind of selection in actual applications, as shown in Figure 4 A.In the embodiment shown in Fig. 4 A, with the embodiment shown in Figure 1A unlike, its front elevation of light-dividing device 402(is as shown in Figure 4 B) Lead-In Area 402a reflect former laser, the first scattering laser and the second scattering laser, the former laser of leading-out zone 402b transmission of light-dividing device, the first scattering laser and the second scattering laser, and Lead-In Area 402a and leading-out zone 402b all transmission Stimulated Light.
In the present embodiment, when wavelength convert section is positioned on former laser optical path, the former laser 421 that LASER Light Source 401 is launched is incident in the Lead-In Area 402a of light-dividing device and is guided by its reflection thus converge at wavelength convert section through beam condensing unit 403, and the angle distribution range of incident angle is the first angular range.This former laser 421 transmission function optical filter 404a2 is also incident in wavelength conversion layer 404a1.Collected by beam condensing unit and collimate from most of Stimulated Light transmission function optical filter of wavelength conversion layer outgoing, due to Lead-In Area and leading-out zone all transmission Stimulated Light of light-dividing device 402, therefore the device transmission that is split of this Stimulated Light 423 guides and to separate with the light path of former laser 421 and to be exported the emergent light into light-emitting device.From the first scattering laser of wavelength conversion layer outgoing, emergence angle is at the first scattering laser mostly transmission function optical filter collected by beam condensing unit and collimate of the first angular range, because light path is reversible, this part first scattering laser 422 is incident in the Lead-In Area 402a of light-dividing device and is imported into the light path reverse propagation of district's reflection guiding along former laser.From the first scattering laser of wavelength conversion layer outgoing, emergence angle is mostly filtered to reflect thus turn back to wavelength conversion layer by function at the first scattering laser of the second angular range and recycles.When specular scattering section 404b is positioned on former laser optical path, the former laser 421 that LASER Light Source 401 is launched is incident in the Lead-In Area 402a of light-dividing device and is guided by its reflection thus converge at specular scattering section 404b through beam condensing unit 403.From the second scattering laser of specular scattering section outgoing, because light path is reversible, emergence angle is incident in the Lead-In Area of light-dividing device at the second scattering laser of the first angular range and is imported into the light path reverse propagation of district's reflection guiding along former laser 421.From the second scattering laser of specular scattering section outgoing, because light path is reversible, emergence angle is incident in the leading-out zone 402b of light-dividing device at the second scattering laser of the second angular range and is exported district's transmission guiding formation emergent light.
In the light-emitting device of the present embodiment, also comprise LED source 408, the light that the Lead-In Area of light-dividing device 402 and leading-out zone all transmission LED source send; The light 425 that LED source sends to be incident on light-dividing device and to be guided by its reflection the emergent light forming light-emitting device.
In the above-described embodiments, preferably, LED source and LASER Light Source share heat sinking back-plate, and such heat dissipation design is the most succinct.
In the above-described embodiments, in fact specular scattering section comprises reflection horizon and covers the scattering layer on surface, reflection horizon, and the reflection horizon of the reflection horizon of specular scattering section and wavelength convert section shares.Such as use high reverse--bias aluminium sheet as reflection horizon, scattering layer then uses the white coating of titanium dioxide granule.In fact other implementation is also had.Such as the reflection horizon of wavelength convert section is diffuse reflective layer, and this backscatter layer and specular scattering section form an entirety.Such as use an overall whiteware plate as the diffuse reflective layer of specular scattering section and wavelength convert section.These implementations do not repeat herein one by one.
In the above-described embodiments, Lead-In Area is all the middle part being positioned at light-dividing device acting surface.In fact leading-out zone also can be positioned at the middle part of light-dividing device acting surface, and Lead-In Area is positioned at the surrounding of leading-out zone.Obviously, now the first angular range refers to and is greater than characteristic angle and the angular range being less than 90 degree, and the second angular range refers to the angular range that angle is less than characteristic angle.Like this, the light path redesigning former laser makes former laser be incident in the Lead-In Area being positioned at surrounding, and design function optical filter again, the effect that preceding embodiment reaches can be reached equally.
The utility model also proposes a kind of projection display equipment, uses above-mentioned light-emitting device as light source.Along with drive unit drives wavelength-converting region and specular scattering district to enter former laser optical path in turn, the outgoing Stimulated Light of light-emitting device timesharing and the second scattering laser, this timesharing exports light can be obtained coloured image by reprojection after light valve synchronous modulation.If light-emitting device also comprises LED source, then LASER Light Source can close a time period in the one-period of drive unit motion, simultaneously within this time period, LED source is opened, and such light-emitting device just can the light of timesharing outgoing three kinds of colors.Such as former laser is blue laser, and Stimulated Light is green, and LED source launches red light, so just can realize timesharing outgoing three primary colours light, thus realizes colour projection's display.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (15)
1. a light-emitting device, is characterized in that:
Comprise the LASER Light Source for launching former laser, also comprise light-dividing device and the beam condensing unit being positioned at this light-dividing device light path rear end, wherein light-dividing device comprises Lead-In Area and leading-out zone, being the first angular range from the angle distribution range of light after beam condensing unit optically focused of Lead-In Area outgoing, is the second angular range from the angle distribution range of light after beam condensing unit optically focused of leading-out zone outgoing; The former laser that LASER Light Source is launched is incident in the Lead-In Area of light-dividing device;
Also comprise the Wavelength converter being positioned at beam condensing unit light path rear end, this Wavelength converter comprises wavelength convert section and specular scattering section, wavelength convert section comprises reflection horizon and covers the wavelength conversion layer on surface, reflection horizon, this wavelength conversion layer absorbs after former laser can outgoing Stimulated Light and the first scattering laser, and wherein the first scattering laser is that former laser is by wavelength conversion layer specular scattering but unabsorbed residue laser; Wavelength convert section also comprises the function optical filter covering wavelength conversion layer surface, this function optical filter mostly can be transmitted into the former laser of firing angle in the first angular range and the first scattering laser, and mostly can be reflected into firing angle at the former laser of the second angular range and the first scattering laser, function optical filter can also the Stimulated Light of mostly transmission full angle scope simultaneously; Specular scattering section then can be carried out specular scattering to the former laser of incidence and be formed the second scattering laser;
Wavelength converter also comprises drive unit, for the former laser optical path driving wavelength convert section and specular scattering section to enter beam condensing unit focus place periodically in turn;
Former laser, the first scattering laser and the second scattering laser are reflected in the Lead-In Area of light-dividing device, the former laser of leading-out zone transmission of light-dividing device, the first scattering laser and the second scattering laser, and Lead-In Area and leading-out zone all transmission Stimulated Light.
2. light-emitting device according to claim 1, is characterized in that, also comprises LED source, and the Lead-In Area of light-dividing device and leading-out zone be the light that sends of Refl-Luminous diode light-source all; The light that LED source sends to be incident on light-dividing device and to be guided by its reflection the emergent light forming light-emitting device.
3. light-emitting device according to claim 2, is characterized in that, described LED source and described LASER Light Source share heat sinking back-plate.
4. light-emitting device according to any one of claim 1 to 3, is characterized in that, the Lead-In Area of light-dividing device is positioned at the middle part of light-dividing device acting surface, and leading-out zone is positioned at around Lead-In Area; First angular range is the angular range that angle is less than characteristic angle, and the second angular range is that angle is greater than characteristic angle and is less than the angular range of 90 degree.
5. light-emitting device according to any one of claim 1 to 3, is characterized in that, the area of described leading-out zone is not less than two times of Lead-In Area area.
6. light-emitting device according to any one of claim 1 to 3, is characterized in that, described specular scattering section also comprises reflection horizon, and shares same reflection horizon with wavelength convert section; Or the reflection horizon of described wavelength convert section is backscatter layer, and this backscatter layer and specular scattering section form an entirety.
7. light-emitting device according to any one of claim 1 to 3, it is characterized in that, described LASER Light Source comprises diode laser matrix, each laser diode launches a branch of laser be parallel to each other, each laser beam is incident in the first convex lens and the second lens successively, wherein the bore of the first convex lens is greater than the second lens, and the coinciding with the focus of the second lens of the first convex lens.
8. a light-emitting device, is characterized in that:
Comprise the LASER Light Source for launching former laser, also comprise light-dividing device and the beam condensing unit being positioned at this light-dividing device light path rear end, wherein light-dividing device comprises Lead-In Area and leading-out zone, being the first angular range from the angle distribution range of light after beam condensing unit optically focused of Lead-In Area outgoing, is the second angular range from the angle distribution range of light after beam condensing unit optically focused of leading-out zone outgoing; The former laser that LASER Light Source is launched is incident in the Lead-In Area of light-dividing device;
Also comprise the Wavelength converter being positioned at beam condensing unit light path rear end, this Wavelength converter comprises wavelength convert section and specular scattering section, wavelength convert section comprises reflection horizon and covers the wavelength conversion layer on surface, reflection horizon, this wavelength conversion layer absorbs after former laser can outgoing Stimulated Light and the first scattering laser, and wherein the first scattering laser is that former laser is by wavelength conversion layer specular scattering but unabsorbed residue laser; Wavelength convert section also comprises the function optical filter covering wavelength conversion layer surface, this function optical filter mostly can be transmitted into the former laser of firing angle in the first angular range and the first scattering laser, and mostly can be reflected into firing angle at the former laser of the second angular range and the first scattering laser, function optical filter can also the Stimulated Light of mostly transmission full angle scope simultaneously; Specular scattering section then can be carried out specular scattering to the former laser of incidence and be formed the second scattering laser;
Wavelength converter also comprises drive unit, for the former laser optical path driving wavelength convert section and specular scattering section to enter beam condensing unit focus place periodically in turn;
The former laser of Lead-In Area transmission of light-dividing device, the first scattering laser and the second scattering laser, former laser, the first scattering laser and the second scattering laser are reflected in the leading-out zone of light-dividing device, and Stimulated Light is all reflected in Lead-In Area and leading-out zone.
9. light-emitting device according to claim 8, is characterized in that, also comprises LED source, the light that the Lead-In Area of light-dividing device and leading-out zone all transmission LED source send; The light that LED source sends to be incident on light-dividing device and to be guided by it emergent light forming light-emitting device.
10. light-emitting device according to claim 9, is characterized in that, described LED source and described LASER Light Source share heat sinking back-plate.
Light-emitting device according to any one of 11. according to Claim 8 to 10, is characterized in that, the Lead-In Area of light-dividing device is positioned at the middle part of light-dividing device acting surface, and leading-out zone is positioned at around Lead-In Area; First angular range is the angular range that angle is less than characteristic angle, and the second angular range is that angle is greater than characteristic angle and is less than the angular range of 90 degree.
Light-emitting device according to any one of 12. according to Claim 8 to 10, is characterized in that, the area of described leading-out zone is not less than two times of Lead-In Area area.
Light-emitting device according to any one of 13. according to Claim 8 to 10, is characterized in that, described specular scattering section also comprises reflection horizon, and shares same reflection horizon with wavelength convert section; Or the reflection horizon of described wavelength convert section is backscatter layer, and this backscatter layer and specular scattering section form an entirety.
Light-emitting device according to any one of 14. according to Claim 8 to 10, it is characterized in that, described LASER Light Source comprises diode laser matrix, each laser diode launches a branch of laser be parallel to each other, each laser beam is incident in the first convex lens and the second lens successively, wherein the bore of the first convex lens is greater than the second lens, and the coinciding with the focus of the second lens of the first convex lens.
15. 1 kinds of projection display equipments, is characterized in that, use light-emitting device according to any one of claim 1 to 14 as light source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484525.7U CN205003432U (en) | 2015-07-07 | 2015-07-07 | Light -emitting device and projection display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484525.7U CN205003432U (en) | 2015-07-07 | 2015-07-07 | Light -emitting device and projection display device |
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| CN205003432U true CN205003432U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520484525.7U Withdrawn - After Issue CN205003432U (en) | 2015-07-07 | 2015-07-07 | Light -emitting device and projection display device |
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| CN (1) | CN205003432U (en) |
Cited By (7)
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| CN105182672A (en) * | 2015-07-07 | 2015-12-23 | 杨毅 | Light emitting device and projection display device |
| WO2018095019A1 (en) * | 2016-11-25 | 2018-05-31 | 深圳市光峰光电技术有限公司 | Light source system, projection system and lighting device |
| CN109557753A (en) * | 2017-09-26 | 2019-04-02 | 深圳光峰科技股份有限公司 | Light-source system and projection arrangement |
| WO2019061820A1 (en) * | 2017-09-26 | 2019-04-04 | 深圳光峰科技股份有限公司 | Light source system and projection device |
| WO2019200931A1 (en) * | 2018-04-16 | 2019-10-24 | 深圳光峰科技股份有限公司 | Light source apparatus and display device |
| CN110737167A (en) * | 2019-10-30 | 2020-01-31 | 无锡视美乐激光显示科技有限公司 | Laser fluorescent light source and projector |
| WO2021157430A1 (en) * | 2020-02-05 | 2021-08-12 | ソニーグループ株式会社 | Optical system |
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2015
- 2015-07-07 CN CN201520484525.7U patent/CN205003432U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182672A (en) * | 2015-07-07 | 2015-12-23 | 杨毅 | Light emitting device and projection display device |
| CN105182672B (en) * | 2015-07-07 | 2017-11-07 | 杨毅 | Light-emitting device and projection display equipment |
| WO2018095019A1 (en) * | 2016-11-25 | 2018-05-31 | 深圳市光峰光电技术有限公司 | Light source system, projection system and lighting device |
| CN108107658A (en) * | 2016-11-25 | 2018-06-01 | 深圳市光峰光电技术有限公司 | Light-source system, optical projection system and lighting device |
| CN108107658B (en) * | 2016-11-25 | 2019-10-25 | 深圳光峰科技股份有限公司 | Light-source system, optical projection system and lighting device |
| CN109557753A (en) * | 2017-09-26 | 2019-04-02 | 深圳光峰科技股份有限公司 | Light-source system and projection arrangement |
| WO2019061820A1 (en) * | 2017-09-26 | 2019-04-04 | 深圳光峰科技股份有限公司 | Light source system and projection device |
| CN109557753B (en) * | 2017-09-26 | 2021-03-02 | 深圳光峰科技股份有限公司 | Light source system and projection device |
| WO2019200931A1 (en) * | 2018-04-16 | 2019-10-24 | 深圳光峰科技股份有限公司 | Light source apparatus and display device |
| CN110737167A (en) * | 2019-10-30 | 2020-01-31 | 无锡视美乐激光显示科技有限公司 | Laser fluorescent light source and projector |
| WO2021157430A1 (en) * | 2020-02-05 | 2021-08-12 | ソニーグループ株式会社 | Optical system |
| US11906893B2 (en) | 2020-02-05 | 2024-02-20 | Sony Group Corporation | Optical system |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20171107 |
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| AV01 | Patent right actively abandoned |